Date: Tue, 27 May 2008 13:37:36 +0200 (CEST) From: Oliver Fromme <olli@lurza.secnetix.de> To: freebsd-questions@FreeBSD.ORG, michaek@mail.ru Subject: Re: strange ps behaviour Message-ID: <200805271137.m4RBba1j036652@lurza.secnetix.de> In-Reply-To: <483BE188.80100@mail.ru>
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Michael Lednev wrote: > Oliver Fromme ?????: > > Michael Lednev wrote: > > > Oliver Fromme ?????: > > > > Michael Lednev wrote: > > > > > # pgrep radiusd > > > > > 1105 > > > > > 33738 > > > > > # ps ax | grep radiusd > > > > > 1105 ?? Ss 2:35,76 /usr/local/sbin/radiusd > > > > > # ps 33738 > > > > > PID TT STAT TIME COMMAND > > > > > > > > It seems that the second matching process exited before > > > > the ps command was executed. > > > > > > It's repeatable. > > > > That means that the radiusd process kept forking short- > > lived child processes, for whatever reason. > > keeping constant PID for children? OK, you didn't mention that it is the same PID every time. In that case my first suspicion would be a bug in pgrep. If it happens again, I suggest you use pgrep -lf. Maybe the output gives a hint. (Also note that ps cuts after 80 columns. Sometimes the information you're looking for is after column 80, so I recommend to always use -ww, especially when the output is used for matching in scripts.) Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "A language that doesn't have everything is actually easier to program in than some that do." -- Dennis M. Ritchie
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